||Industry - Keystone Grain Elevator
||Keystone grain elevator located on the east bank of the Calumet River at 106th Street. Looking from 2nd floor of 10617 Mackinaw Avenue. In the distance is 106th Street bridge. c1914
||SCH_Waterways,_Calumet_River; SCH_East_Side; SCH_Bridges;
||1647; http://www.pullman-museum.org/cgi-bin/pvm/mainRecordDisplayXML.pl?recordid=10541; 81-8-14
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||Southeast Chicago Historical Society